NPPES file of Aug 9, 2026

Briar L. Duffy, M.D.

Internal Medicine Physician · Minneapolis, MN

Briar L. Duffy, M.D. is an internal medicine physician with a practice address in Minneapolis, Minnesota, and NPI 1275578452, issued on Jun 19, 2006. Check the license (Minnesota 54093, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275578452
Name
Briar L. Duffy
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
54093 MN
MD437120 PA
Self-reported in NPPES; status is on the state search
Practice location
424 Harvard St SE, Minneapolis, MN 55455
Phone
(612) 273-5700
Enumerated
Jun 19, 2006
Record last updated
May 22, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110721000745); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 424 Harvard St SE

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lawrence Afrin, MDHematology & Oncology Physician1659489607
  2. Yvonne Datta, M.D.Hematology (Internal Medicine) Physician1730102070
  3. Mindy Fadell, NPPediatric Nurse Practitioner1598793366
  4. Natalie Gohdes, PA-CPhysician Assistant1679811137
  5. Bethany Hanke, NPAdult Health Nurse Practitioner1841555927
  6. Jeanine Jarnes, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1851536072

Verify Briar L. Duffy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 54093
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Minnesota license search

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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

166 Medicare Part D claims for 45 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Briar Duffy166
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 82.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.5
  2. Costout of 100 · 30%38.2
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Fairview Health ServicesMinneapolis, MN
  2. University OF Minnesota Health Clinics And Surgery Center IncMinneapolis, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

653 internal medicine physician records list a practice address in Minneapolis

They are 653 of the 22,918 NPPES records with a practice address in Minneapolis, and 2,632 internal medicine physician records in Minnesota.

Other internal medicine physician records in Minnesota

  1. Christopher Aakre, MDRochester, MN1508151663
  2. Karen Aarestad, MDBrainerd, MN1275510216
  3. Michael Abawkaw, MDMinneapolis, MN1114503315
  4. Nadhem Abdallah, MDMinneapolis, MN1396423810
  5. Ahmed Abdalrhim, MBBSRochester, MN1679671762
  6. Nermine AbdelwahabSaint Paul, MN1871158600
  7. Sarah Abdul Jabbar, MBBSSt Cloud, MN1932489002
  8. Mohamed Abdullahi, M.D.Minneapolis, MN1437475431
  9. Omar Abdullahi, MDMinneapolis, MN1184118200
  10. Paul Abear, MDMinneapolis, MN1841710696

Common questions

What is Briar L. Duffy, M.D.'s NPI number?

Briar L. Duffy, M.D.'s National Provider Identifier (NPI) is 1275578452, issued on Jun 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Briar L. Duffy, M.D. located?

The NPPES record lists a practice address at 424 Harvard St SE, Minneapolis, MN, 55455. Phone: (612) 273-5700. Providers update this record themselves, so call before visiting.

How can I verify Briar L. Duffy, M.D.'s license?

NPPES lists Minnesota license number 54093, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Briar L. Duffy, M.D. prescribe under Medicare Part D?

In 2024, Briar L. Duffy, M.D. had 166 Medicare Part D claims for 45 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Briar L. Duffy, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.